Skincare is a complex topic with no one-size-fits all solution, but it is exciting that you are embarking on your journey. If you are new to skincare, I recommend starting with a simple routine consisting of: a cleanser, moisturizer, and sunscreen.
To help you determine which products are likely to be suitable for your skin, you will want to determine your skin type first. Most people fall into dry, oily, combination, or sensitive skin. You can read more about determining your skin type here: https://www.gofriendshop.com/blog/skincare_10141
After you figure out your skin type, you will want to find a product that is suitable for that type. Most retailers such as Friendshop will have in the description of the product what type of skin that product is suitable for. If you are completely new, these tried and true bestsellers are a good place to start exploring:
Skincare products usually take a few weeks before you see results so I recommend trying out a product for at least a few weeks and then evaluating the results. Obviously, if a product is showing adverse effects such as extreme redness or itchiness early on, you may have sensitive skin and you will want to stop using that product. Otherwise, take photos everyday for the next few weeks and see if your skin shows signs of improvement. If not, you can swap out products one at a time and see if that makes a difference. Finding what works for you is an experimental process that happens over time, but when you find the products that you love, it will be well worth the effort.